155566960

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{9871}}^1$

素因数の和:10081

約数の個数: 40

約数和(自身を含む): 363566016

約数和(自身を除く): 207999056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7880, 9871, 15760, 19742, 39484, 49355, 78968, 98710, 157936, 197420, 394840, 789680, 1944587, 3889174, 7778348, 9722935, 15556696, 19445870, 31113392, 38891740, 77783480, 155566960]

約数ペア:

[(1, 155566960), (2, 77783480), (4, 38891740), (5, 31113392), (8, 19445870), (10, 15556696), (16, 9722935), (20, 7778348), (40, 3889174), (80, 1944587), (197, 789680), (394, 394840), (788, 197420), (985, 157936), (1576, 98710), (1970, 78968), (3152, 49355), (3940, 39484), (7880, 19742), (9871, 15760)]